patternfly/tests-src/_includes/widgets/charts/utilization-bar.html

This reference implementation of PatternFly is based on [Bootstrap v3](http://getbootstrap.com/). Think of PatternFly as a "skinned" version of Bootstrap with additional components and customizations.

<div class="progress">
  <div class="progress-bar" role="progressbar" aria-valuenow="25" aria-valuemin="0" aria-valuemax="100" style="width: 25%;" data-toggle="tooltip" title="25% Used">
    <span class="sr-only">25% Used</span>
  </div>
  <div class="progress-bar progress-bar-remaining" role="progressbar" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100" style="width: 75%;" data-toggle="tooltip" title="75% Available">
    <span class="sr-only">75% Available</span>
  </div>
</div>
<script>
  // Initialize Tooltip
  jQuery(document).ready(function() {
    jQuery('[data-toggle="tooltip"]').tooltip();
  });
</script>